package com.itheima.reggie.controller;


import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.User;
import com.itheima.reggie.service.UserService;
import com.itheima.reggie.utils.SMSUtils;
import com.itheima.reggie.utils.ValidateCodeUtils;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.concurrent.TimeUnit;

@RestController
@RequestMapping("/user")
@Slf4j
public class UserController {

    @Autowired
    private UserService userService;

    @Autowired
    private RedisTemplate redisTemplate;


    /**
     * 短信登录
     * @param session
     * @param user
     * @return
     */
    @PostMapping("/sendMsg")
    public R<String> sendMsg(HttpSession session,@RequestBody User user){
        //获取手机号
        String phone = user.getPhone();

        if(!StringUtils.isEmpty(phone)){
            //随机生成四位验证码
            String code = ValidateCodeUtils.generateValidateCode(4).toString();
            log.info("code:{}",code);

            //调用阿里云提供的短信服务API完成发送短信
//            SMSUtils.sendMessage("","",phone,code);

            //需要将生成的验证码保存到Session
//            session.setAttribute(phone,code);
            //将生成的验证码保存到redis
            redisTemplate.opsForValue().set(phone,code,5 , TimeUnit.MINUTES);

            return R.success("手机验证码短信发送成功");
        }
        return R.error("手机号不存在");
    }


    /**
     * 登录验证
     * @param session
     * @param map
     * @return
     */
    @PostMapping("/login")
    public R<User> login(HttpSession session, @RequestBody Map map){
        log.info("{}",map);
        //获取手机号
        String phone = map.get("phone").toString();
        //获取验证码
        String code = map.get("code").toString();
        //比较验证码
        Object codeInSession = redisTemplate.opsForValue().get(phone);
//        Object codeInSession = session.getAttribute(phone);
        if(codeInSession!=null && codeInSession.equals(code)){//登录成功
            //判断用户是否存在
            LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper();
            queryWrapper.eq(User::getPhone,phone);
            User user = userService.getOne(queryWrapper);
            if(user==null){
//                新用户自动完成注册
                user= new User();
                user.setPhone(phone);
                userService.save(user);
            }
            session.setAttribute("user",user.getId());
            //登录成功，将验证码删除
            redisTemplate.delete(phone);
            return R.success(user);
        }
        return R.error("登录失败");

    }
}
